Probably somme oil spilled on engine during filter change or refilling of crankcase. Smell should go away after it burns off. You can just use recirculated air instead of fresh air for the time being..
They have perfume running through the vents. Wash your clothes to get the smell out or it'll smell like that FOR A LONG TIME.
Depends on the smell. What does it smell like?
My 2009 Hyundai has 40K miles and recently started to smell like excrement. Drive the car, turn on the vents, open the windows or gag! Terrible. I changed the cabin air filter, no change.
Your house may smell like electrical fire or nail polish remover is coming out of the AC vents because you have fried wiring. You should make sure that you do not have a wall fire.
sounds like your air conditioner compressor is bad.
There are a number of reasons why air coming up from air vents would smell like dead fish. The air ducts may need cleaning. The air coil may need replacing. It could even be an electrical problem with the unit.
The possible explanation for the smell may be that the heater core in the vehicle has a slight leak, therefore the smell of evaporating antifreeze will come through the vents until it is all dried up. Solution is to take the car to a garage and get the heater core replaced.
They smell like rubber when you first get them but they can change their smells if things like hairspray and perfume touch them
The heater coil probably has a leak causing steam and vaporized antifreeze to be released into the vents. Is it using coolant?
Almost 100% certainty
Sounds like your heater core has a leak and the sweet smell is your coolant.
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